SIRIUS S00 power contactor — 3RT1016-1AU05
The Siemens 3RT1016-1AU05 is a SIRIUS S00-size power contactor rated for motor switching at 4 kW in AC-2 duty at 400 V and 5.5 kW in AC-3 at 690 V. It carries a 10 A continuous rating at 24 V in AC-1 resistive load, with a 30 million mechanical cycle life typical for the S00 frame. The 45 mm wide body snaps onto a 35 mm DIN rail per EN 50022, fitting standard panel layouts without extra adapters.
Motor duty and coordination
For motor loads, the AC-2 rating at 400 V delivers 4 kW — suited for slip-ring motors or reversing applications where the contactor makes and breaks under load. The AC-3 rating at 690 V reaches 5.5 kW, covering standard squirrel-cage motors in direct-on-line starts. Type 2 coordination requires a gL/gG 20 A fuse; Type 1 allows up to 35 A. The AC-4 rating at 400 V is 8.5 A, useful for inching or plugging duty cycles where contacts open at full locked-rotor current.
Mounting and integration
Mounts via screw or snap-on onto 35 mm DIN rail per EN 50022. The S00 footprint is 45 mm wide by 57.5 mm high by 114 mm deep — compact enough for dense control panels. Side-by-side mounting is permitted, saving rail space in multi-contactor groups. Screw-type terminals accept 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or max 2x 0.75–4 mm² solid/stranded; AWG equivalents are 2x 20–16, 2x 18–14, or 1x 12. Finger-safe IP20 protection on the front and terminals.